From: Junio C Hamano <gitster@pobox•com>
To: git@vger•kernel.org
Cc: Jeff King <peff@peff•net>, Ralf Thielow <ralf.thielow@gmail•com>
Subject: [PATCH] builtin/clone.c: detect a clone starting at a tag correctly
Date: Mon, 23 Jun 2014 14:32:51 -0700 [thread overview]
Message-ID: <xmqqk387b9bw.fsf_-_@gitster.dls.corp.google.com> (raw)
In-Reply-To: <20140623210755.GA15766@sigill.intra.peff.net> (Jeff King's message of "Mon, 23 Jun 2014 17:07:55 -0400")
31b808a0 (clone --single: limit the fetch refspec to fetched branch,
2012-09-20) tried to see if the given "branch" to follow is actually
a tag at the remote repository by checking with "refs/tags/" but it
incorrectly used strstr(3); it is actively wrong to treat a "branch"
"refs/heads/refs/tags/foo" and use the logic for the "refs/tags/"
ref hierarchy. What the code really wanted to do is to see if it
starts with "refs/tags/".
Signed-off-by: Junio C Hamano <gitster@pobox•com>
---
Jeff King <peff@peff•net> writes:
>> Because the pattern is not anchored to the left with a slash, it is
>> clear that the original cannot even claim that it was trying to
>> munge "foo/refs/tags/" as well.
>
> Yeah, the strstr seems very wrong there. Even with the "/", why would
> you want to match "refs/heads/refs/tags/"?
>
>> Which means this is trivially correct, but at the same time I wonder
>> what it means for our-head to point at a ref in refs/tags/ hierarchy.
>
> I think it is for "git clone --branch=v1.0". We create a refspec pulling
> v1.0 to its local tag in that case (as opposed to to something in
> "refs/remotes/origin/"). So I really think this does want to be
> starts_with.
Thanks; here is what I'm gonna queue.
builtin/clone.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/builtin/clone.c b/builtin/clone.c
index 9b3c04d..545105a 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -695,7 +695,7 @@ static void write_refspec_config(const char* src_ref_prefix,
if (option_mirror || !option_bare) {
if (option_single_branch && !option_mirror) {
if (option_branch) {
- if (strstr(our_head_points_at->name, "refs/tags/"))
+ if (starts_with(our_head_points_at->name, "refs/tags/"))
strbuf_addf(&value, "+%s:%s", our_head_points_at->name,
our_head_points_at->name);
else
--
2.0.0-637-g8ac8cc9
next prev parent reply other threads:[~2014-06-23 21:33 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-18 19:41 [PATCH 0/16] skip_prefix refactoring and cleanups Jeff King
2014-06-18 19:41 ` [PATCH 01/16] parse_diff_color_slot: drop ofs parameter Jeff King
2014-06-18 19:41 ` [PATCH 02/16] daemon: mark some strings as const Jeff King
2014-06-18 19:42 ` [PATCH 03/16] avoid using skip_prefix as a boolean Jeff King
2014-06-18 19:44 ` [PATCH 04/16] refactor skip_prefix to return " Jeff King
2014-06-20 1:59 ` Eric Sunshine
2014-06-20 2:08 ` Jeff King
2014-06-20 2:30 ` Eric Sunshine
2014-06-20 2:38 ` Jeff King
2014-06-23 18:50 ` Junio C Hamano
2014-06-23 21:07 ` Jeff King
2014-06-23 21:32 ` Junio C Hamano [this message]
2014-06-18 19:45 ` [PATCH 05/16] apply: use skip_prefix instead of raw addition Jeff King
2014-06-18 19:46 ` [PATCH 06/16] fast-import: fix read of uninitialized argv memory Jeff King
2014-06-18 19:47 ` [PATCH 07/16] transport-helper: avoid reading past end-of-string Jeff King
2014-06-18 19:47 ` [PATCH 08/16] use skip_prefix to avoid magic numbers Jeff King
2014-06-23 21:44 ` Junio C Hamano
2014-07-01 17:35 ` Jeff King
2014-06-18 19:48 ` [PATCH 09/16] use skip_prefix to avoid repeating strings Jeff King
2014-06-18 19:49 ` [PATCH 10/16] fast-import: use skip_prefix for parsing input Jeff King
2014-06-20 3:19 ` Eric Sunshine
2014-06-20 5:45 ` Jeff King
2014-06-20 8:59 ` Eric Sunshine
2014-06-18 19:49 ` [PATCH 11/16] daemon: use skip_prefix to avoid magic numbers Jeff King
2014-06-18 19:51 ` [PATCH 12/16] stat_opt: check extra strlen call Jeff King
2014-06-18 19:51 ` [PATCH 13/16] fast-import: refactor parsing of spaces Jeff King
2014-06-18 19:56 ` [PATCH 14/16] fetch-pack: refactor parsing in get_ack Jeff King
2014-06-20 5:15 ` Eric Sunshine
2014-06-18 19:56 ` [PATCH 15/16] git: avoid magic number with skip_prefix Jeff King
2014-06-18 19:57 ` [PATCH 16/16] use skip_prefix to avoid repeated calculations Jeff King
2014-06-19 5:22 ` [PATCH 0/16] skip_prefix refactoring and cleanups Tanay Abhra
2014-06-19 21:58 ` [PATCH 17/16] http-push: refactor parsing of remote object names Jeff King
2014-06-19 22:08 ` Jeff King
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